Profiling-machine.



No. 648,287. Patented Apr. 24, I900.

G. A. OWEN. PROFILINQMAGHINE.

(Application filed Nov. 5, 1898.)

(No Model.) 4 Sheetg-Sheef l.

No. 648,287. v Patented Apr. 24, I900.

G. A. OWEN.

PBOFILING MACHINE. I (Application filed Nov. 5', 189B.) (No Model.) 4Sheets-Shoat No. 648,287. Patented Apr. 24, I900. a. A. owzn.

PROFILING MACHINE.

(Application filed Nov. 5, 189B.)

' '4 Sheets-Sheet 4.

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: ITED STATES PATENT OFFICE.

GEORGE ALFRED OWEN, OF SPRINGFIELD, MASSACHUSETTS.

PROFILING-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 648,287, dated April24., 1900.

Application filed November 5, 1898. Serial No. 695,554. (No model.)

T 0 ct whom, it may concern.-

Be it known that I, GEORGE ALFRED OWEN, a citizen of the United Statesof America, and a resident of Springfield, in the county of Hampden andState of Massachusetts,have invented certain new and useful Improvementsin Profiling-Machines, of which the following is a full, clear, andexact description.

This invention relates to improvements in profiling-machines of a classin which the movements of the tool or cutters, one or more, which movein an undulatory course, movable corresponding or relatively to the workbeing profiled, are automatically controlled by a pattern or former, theoperation of profiling being automatic, avoiding the necessity ofhand-operated means for maintaining the pattern-stud of the movabletool-support constantly in contact on the pattern or former, so that theoperations of profiling may be performed by a person of less skill thanheretofore required for such work.

Another object of the invention is to pro- .vide mechanism whereby themovable workcarrying bed of the machine will have its longitudinalhorizontal movement while the profiling is being performed at a slowrate of speed, automatically shifting or reversing mechanism insuringthe quick return movement of the bed.

Another object of the invention is to provide automatic mechanism forcausing the support or supports for the tools or cutters and for thepattern-stud to be automatically lifted clear from the article beingprofiled and from the patterns after the work-carrying bed has reachedthe limit of its movement in one direction, leaving the tools andpattern-studs free and clear from the work and patterns while thework-carrying bed is having its quick return movement.

My purpose has further been to provide an automatic profiling-machinehaving capacity for largely-increased work with efficiency andpracticability, which in its construction and organization iscomparatively simple and inexpensive.

To these ends the invention consists in the cooperative combination andarrangement of parts, mechanisms, and devices, and in the constructionof certain of such parts and devices, all substantially as set forth inthe claims.

Reference is to be had to the accompanying drawings, in which anexemplification of my present improved automatic profiling-machine isillustrated.

Figure 1 is aplan view of the machine with a portion at the rear end ofthe main bed or support shown as broken out for disclosing underlyingmechanism for imparting clearer understanding of the machine. Fig. 2 isa front end elevation, a portion of the bed being broken away to enableclearer illustration of parts of the mechanism. Fig. 3 is a sideelevation of the rear end portion of the machine. Fig. et is a verticalsectional view of a portion of the reversing mechanism for theworkcarrying bed, taken'on the line 4 4, Fig. 3. Fig. 5 is a perspectiveview of appliances comprised in the reversing mechanism, to behereinafter more particularly referred to. Fig. 6 is a view in frontelevation and partial section, showing the device for latching orrestraining the tool-support in its lowered position and showing in partthe mechanism of connection whereby the said latch device isautomatically released. Fig. 7 is a perspective view of a cam device onthe work-carryin g support which operates to release the lastmentionedlatch device. Fig. 8 is a perspective view in detail of the dog orprojection provided on the work-carrying bed and which is comprised as acooperating part in the reversing mechanism. Fig. 9 is a perspectiveview illustrating the means whereby the pattern-stud is adj ust-edrelatively to the position of the cutting-tool. Fig. 10 is a verticalsectional view taken on the plane indicated by the line 10 10, Fig. 9.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings, A indicates the main or stationary bed of the machine,mounted 011 legs, as shown, and provided with suitable journal supportsor uprights 12 12 at the rear end for the driving-shaft 13, havingthereon the conepulley 14, the drum or elongated pulley 15, and the spurgear-wheel 16 of comparatively-small size. Intermediate between thefront and rear ends of the bed the latter is at its opposite sidesprovided with the uprights 17 17, rigidly supporting between'them theelevated horizontal transverse member a, on which, as shown, threeindependent and transversely-movable carriages B BB areengaged forsliding movement, each of these carriages having vertical ways therein,in which are fitted for vertically-sliding movements the supports O Ofor the spindles or shafts b, which carry the'cutting-tools c at theirlower ends, said supports also being provided with the depending studsor tracers d, which are adapted to bear upon the marginal portions ofthe pattern or former grooves, hereinafter pointed out. I

The bed A is provided with the longitudinalways l8 18, along which ismounted to slide longitudinally the work-carrying bed D,

of rectangular form, having superimposed and detachably confiningthereon by the screws 19 the work-carrying plate E. The work-carryingplate is provided with the severallongitudinally-arranged series ofpatterns orformers 20, having grooves 21, the contour of each of whichcorresponds to that of the work to be profiled. v

As shown in the presentillustration, a series of revolver-barrels areshown as placed on .the work-carrying plate, it being deemed notnecessary to obscure the drawings by showing the work clamping orconfining devices, it being understood that any of the common orotherwise suitable Work confining clamps or jigs may be employed.

' In the upstanding tubular cases 22, supparticularly described.

ported by and above the respective transversely-movable carriages B B B,springs 23 are provided, which are connected to have a lifting actionupon the vertically-slidin g toolsupport 0. These supports are depressedagainst the lifting force of the springs by the levers 24. Each of theouter tool-supports has a notch or catch-rest or shoulder 25, in which alockin g bolt or latch 26 (more particularly shown in Fig. 6)engages'for restraining the vertically-movable slides in their loweredpositions to insure that the tracers will be down in engagement in thepattern-grooves and the cutting-tools lowered to their work as thelatching-bolts are disengaged from the said notches 25 by theautomatically-operating mechanism, which will be hereinafter The middleone of the three vertically-sliding tool-supports is provided with thestud 27, while the slide 0, to one side of the middle slide, is providedwith the horizontally-extending lug 28, which extends over said stud 27and serves when the outer slide is depressed to hold also the middleslide depressed.

, Each of the latching-bolts 26 has an angular bolt-operating lever 29,and to each of these angular levers a connecting or thrust rod 30 issecured by its upper end, the lower end of the rod being connected orengaged with an intermediate portion of a lever-32, the Outer end ofwhich is pivoted on the bracket 45 on the feed-screw shaft.

33, affixed to the outer carriage, the'inner extremities of each ofthese levers projecting transversely beyondthe marginal portion of thework-carrying plate.

The work-carrying plate has at its lateral edges next to its front endthe cam projections'34, which when the work-carrying bed D and plate E,have been moved to about their rearward limit impinge against the levers32, securing the swinging movements thereof, and the release of thelatch-bolts for the two outer tool-carrying slides permitting them to beby their springs elevated and leaving the intermediate one of the slidesalso unrestrained to be also elevated by its spring.

The mechanism forimparting the slow rearward working motion to themovable bed and work-holding plate and, for insuring the return movementthereof at a much quicker rate of speed will be now described.

Below the pulley-shaft 13,parallel therewith, is the horizontaltransverse counter-shaft G, havingon its end the comparatively-largespur gear-wheel 35, which meshes in the gear 16 on the driving-shaft 13.s The counter-shaft .G- has loose thereon the bevel gear-wheel 36, thehub of whichis in abutment against the fixed collar .37 on thecounter-shaft. Opposite said bevel-gear 36 and suitably distanttherefrom is a spur-gear 38, which is also understood as loose on thecounter-shaft, it being held against outward displacement by the collar39. The inner faces of both said gearwheels 36 and 38 have the clutchmembers 40 provided thereon. The shiftable clutchsleeve f, which issplined and longitudinally movable on the'counter-shaft between the saidgear-wheels 36 and 38, has projecting from its opposite faces the clutchmembers 42, so that when said sleeve is moved endwise in the one or theother direction the countershaft primarily'driven from theshaft 13 willcause either'the rotation of the bevel gearwheel 36 or the spur.gear-wheel 38 in the samedirection as that of the rotation of thecounter-shaft; but only one of these gears,

however, will be rotated at any one time. on the articles to be profileduntil such time Longitudinally supported centrally and horizontallyunder the stationary bed A is a feed-screw or worm shaft g, having fixedon its end next to and to mesh into the aforesaid bevel gear-wheel 36the somewhat-smaller bevel gear-wheel 44. The said feed-screw shaft hasnear its end, a short distance within the location of the said bevelgear-wheel 44, another fixed and considerably-larger bevel gear-wheel45. A short stud-shaft 41 is horizontallyjournaled under the stationarybed A, parallel with the counter-shaft and a short distance forwardthereof, which stud-shaft has thereon the fixed spur gear-wheel 46 andthe comparatively-small bevel gear-wheel 47, which meshes into thelarger bevel gear-wheel The clutch-sleeve shifter, as seen in detail inFig. 5, the same consisting of the rigid angular lever 72, having apivotal support at its elbow for a swinging movement in a horizontalplane under the stationary bed A, its longitudinal arm 48, extendedrearwardly under the counter-shaft, being provided with the upstandingfork 50, which embraces and engages the grooved splined clutch-sleeve f.The laterally-projected arm 52 of said angular lever is provided withthe upstanding studs or posts 53 and 54, the one nearer thefulcrum-support being extended through the arc-formed slot 55, formed inand through the topof the main bed A, said slot being indicated bythedotted lines in Fig. 1, and, as shown in Fig. 2, the upper end ofsaid stud 53 projects above the surface of the top of the bed A. Thework-carrying bed at its front end has the edgewise-provided dependinglug or abutment 56, which is in line with the stud 53. The otherupstanding stud 54 of the angular lever has its position outside of thelateral edge of the movable bed and work-holding plate, as shown inFigs. 1 and 2, and the movable work-carrying bed has at its lateraledge, near its rear end, the adjustable dog or abutment block 57, thesame as shown in Fig. 8, having the dovetail rib 58, which enters thecorresponding shaped groove 59 therefor in the side edge of the movablebed D, said dog being held in any of its positions of adjustmentlongitudinally by the confining-bolt or set-screw 59.

The extremity of the transversely-extending member of the angular leverH, as shown in the drawings, is formed rounded and tapered to constitutea handle 60 to be conveniently grasped for a manual operation to behereinafter described.

The tool carrying spindles b, vertically journaled in each of the slidesC and which at their lower ends are provided with the cuting-tool c, areprovided with the pulleys 62, around which run the belts 63, which alsorun around and are driven by the drum 15.

The operation of the machine will be now described, it being understoodthat the workcarryingbed with the work-holding plate having the patternsthereon provided to corre-' spond with the articles to be profiled is inthe forwardly-retu rning position, (shown in Fig. 1,) having been runabout two-thirds forward to its starting position, the series of workhaving been previously profiled and the sliding splined clutching-sleeve being inclutch with the bevel gear-wheel 36, so that suchgear working on the smaller bevel gear-wheel 44 will cause the returnmovement of the workcarrying bed at a comparatively-fast rate of speed,and when the work-carrying bed has about reached its limitof forwardmovement the dog 57, contacting on the member 54: of the clutch-shiftingdevice h, will throw the spline out of engagement with the gear-wheel36, so that there will be no further forwardly driving of the feed-screwshaft from the shaft G through the gearing 36 and 44,-. The new seriesof parts to be profiled having been properly placed on the work-holdingplate and the slides C 0 having been lowered to present the tracers incontact in the patterngrooves and the cutting-tools for operation at theedges of the work the handle portion 60 of the clutch-shifting device isgrasped and forwardly swung, placing the clutch-sleeve f in clutch withthe gear-wheel 40, which is loose on the shaft G, whereupon suchgearwheel rotates, and through the gears 46 and 47, which operate on thefeed-screw-shaft gear-wheel 45, cause the rotation of the feedscrewshaft g at a much slower rate than the rotation which it has when driventhrough the gearing 36 44 and in the reverse direction, all as issuitable for the proper slow feeding motion of the bed while the cuttersare performing their work. As the workcarrying bed approaches itsrearward limit of movement it's abutment 5b in striking against theupstanding member 53 of the clutch-sleeve-shifting device, which member53 is shown as located near the fulcrum of the angular lever comprisedin such shifting device, imparts by a slight degree of bodily movementof the member 53 as forced bythe abutment 56 a comparativelyconsiderable swinging movement of the rear end of the lever-arm 4:8 andcorresponding extent of sliding movement of the clutch-sleeve to carrythe latter not only entirely out of clutch with the gear-wheel 36, butinto clutch with the spur gear-wheel 38 to insure automatically andimmediately the reversal and return movement of the work-holding bed,and just before or at about the time that the clutch is reverselyshifted for the purpose stated the cam projections 3e operate on thelevers 32, automatically disengagingthe latch-bolts 26 from theirrestraining engagements with the lowered tool-carrying slide 0, leavingthe latter free to be lifted by their springs, and in the returnmovement of the work-carrying bed the dog 57 again serves to throw theclutchsleeve out of engagement with the gear-wheel 36, as beforedescribed, it being noticed that the dog 57 in its forcing movement onthe member 54 is operating at the extremity of the lever-arm 52 anddistant from its fulcrum, and that there is quite a long distancebetween the right-hand end of the clutch-sleeve and the gear-wheel 38,so that the sleevef will not be unduly placed in clutch with thegear-wheel 38.

The tracers d are shown as provided with tapered extremities d andvertically adjustable through the lug or bracket therefor (indicated at66) forwardly extended beyond the face of the lower portion of eachtool-carrying slide. For fine adjustments, so that the surfaces of thetracers to engage the edges of the pattern grooves may be properly inrelation to the cutting-tools, the tracers may be raised or loweredslightly in their bracket; but in order to provide greater latitude ofadjustment for manifest convenience and increased availability thebrackets 66 are themselves bodily adjustable in a line toward and.

IIO

away from the tool-earryingshafts, as clearly shown in Figs. 9 and 10,in which each bracket 66 is shown as consisting of a block having adovetail way 67 at its inner edge fitting to slide over the dovetail rib68 on the tool-carrying support 0. The tool-carrying support is providedwith a rigid lug or fix ture 69, to which. an adjusting and operatingscrew 70 is passed with a screwthread engagement, the extremity of saidscrew being entered to engage in the bracket 66 in such a way as torotate relatively thereto and yet to I insure that the bracket will beforced bodily in unison with thescrew. This engagement of the part ofthe screw which penetrates into the socket therefor in the bracket 66 isshown as being made with the bracket by movable horizontallytransversely relatively to the pattern andalso adapted for a verticalsliding movement toward and from the surface of the work-carryingsupport, having a tracer to engage the pattern and carrying acutting-tool, means for rotating the cuttingtool, a device for engagingthe sliding toolcarrying support for confining it in its loweredposition, means operated by the workcarrying support and acting on thesaid engaging devices for the sliding tool-support for periodically andautomatically releasing the latter, means for elevating and sustainingthe released vertically-sliding support, a device operated by thework-carrying support for automatically reversing the driving mechanismfor said work-carrying support'when the same has completed itslongitudinal feed movement, and for automatically placing saidreversible mechanism out of driving connection with the saidlongitudinally-movable sup port when the latter has completed its returmovement. 7

2. In an automatic profiling-machine having the longitudinally movableand reciproeating work-carrying bed and means for imparting itsmovements thereto, said bed being provided with a cam 34, and thetransversely-movable carriage B and verticallymovable slide 0 having thetracer and profiling-tool, substantially as described, of alatching-bolt adapted to engage the slide and having an operating-lever,a lever 32 carried by the carriage and located across the path of Imovement of the cam, and a connection between said lever 32 and thelatch-bolt-operating lever, substantially as described.

3. In an automatic profiling-machine, in combination, the main bed andthe longitudinally-movable work-carrying bed having formers, thetransverse elevated support at having the carriage B movable along sameprovided with the vertical slide 0 having toolcarrying shaft and tracer,the shaft G-and means for rotating it, the gear-wheels 36 and 38 looseon said shaft, the splined clutchsleeve, on said shaft G, thelongitudinal feedscrew-shaft engaging the movable carriage having thegear 44 meshing gear 36, and having the gear-wheel 45, the gear 46 Imeshing the gear 38 and having the gear 47 meshing the gear 45, asleeve-shifting device moved the shaft G and means for rotating it, the

gear-wheels 36 and 38 loose on said shaft, the splined clutch-sleeve, onsaid shaft G, the longitudinal feed-screw shaft engaging the movablecarriage'having the gear 44 meshing gear 36, and having the gear-wheel45, the gear 46 meshing the gear 38 and having the gear 47 meshing thegear 45, a swinging sleeve-shifting device having the projection 53adapted to be engaged .by said abutment 56 of the movable bed, and meansfor rotating the toolshaft.

5. In an automatic profiling-machine, in combination, the main bed andthe longitudinally-movable work-carrying bed having formers and thedistantly-located abutments 56 and 57, the transverse elevated supportat having the carriage B movable along same providedwith the verticalslide 0 having toolcarrying shaft and a tracer, and means for rotatingthe tool-shaft, the shaft G and means for rotating it, the gear-wheels36and 38 loose on said shaft, the splined clutch-sleeve, on said shaftG, the longitudinal feed-screw shaft engaging the movable carriagehaving the gear 44 meshing gear 36, and having the gearwheel 45, thegear 46 meshing the gear 38 and having the gear 47 meshing the gear 45,a swinging sleeve-shifting device having the projections 53 and 54adapted to'be successively engaged by said abutments 56 and 57 of themovable bed, for the purposes set forth.

GEORGE ALFRED OWEN.

Witnesses:

WM. S. BELLOWS,

M. A. CAMPBELL.

